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Multiplying Function Handles quad

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sarngon
sarngon 2015-3-20
评论： Torsten 2015-3-20
Hi Guys , When I run this code below I get Error using * Inner matrix dimensions must agree. So whats your solution for this .
Error in f8>@(w)bb(w)*cc(w) (line 31)
f3 =@(w)bb(w)*cc(w);
Thanks .
code:
bb=@(w) (((1+w/wr*l)*vi/ccons).^(k-1));
cc=@(w) (2.71.^((-((1+w/wr*l)*vi/ccons)).^k));
f3 =@(w)bb(w)*cc(w);

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Torsten
Torsten 2015-3-20
f3 =@(w)bb(w).*cc(w);
Best wishes
Torsten.
  2 个评论
sarngon
sarngon 2015-3-20
Thanks ,
Can You explain why should I use dot there ?
Torsten
Torsten 2015-3-20
w is a vector, say w=(w1,w2,...,wn), and the value of your function to be integrated at positions
w=(w1,w2,...,wn) is
(bb(w1)*cc(w1),bb(w2)*cc(w2),...,bb(wn)*cc(wn))
Thus you must use elementwise multiplication to get
(bb(w1),bb(w2),...,bb(wn)).*(cc(w1),cc(w2),...,cc(wn))=
(bb(w1)*cc(w1),bb(w2)*cc(w2),...,bb(wn)*cc(wn)).
Best wishes
Torsten.

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